Oxygen-cutting apparatus.



No. 890,289. PATENTED JUNE 9, 1908. H. P.MBRRIAM. OXYGEN CUTTING APPARATUS.

APPLICATION FILED 00mn. 1907.

.Figure- 1 is a HENRY P. MERRILAM, OF NEW YORK, N. Y.

OXYGEN-CUTTING APPARATUS.

Specification of Letters Patent.

Patented June 9, 190e.

Application filed October 30, 1907. Serial No. 399,971.

To all whom it 'may concern:

Be it known that I, HENRY P. MERRIAM, a citizen of the. United States, and resident of the city, county, and State of New York,

have made certain new and useful Inven' tions Relating to OxygenCutting Apparatus, of which the following is a specificatiom taken in connection with the accompanying.

drawing, forming part of the same.

This invention relates to oxygen cutting apparatus and relates especially to apparatus in ywhich plates of iron or similar material are simultaneously oxidized and fused by an oxidizing cutting jet and heated to the ignition point by blow-pipe action, using liquid or similar hydrocarbon fuel so as to render the apparatus more readily portable.

In the accompanying drawing showing an illustrative embodiment of this invention and in which the samereferencc numeral refers to similar )arts in the several figures, longitudinal sectional view. Fig. 2 is a transversesectional.detail taken substantially along the line 2-'2 of Fig/1. Fig. 3-is a detail of the control valve taken substantially along `the line 3 3 of Fig. 1.

Any desired liquid fuel havinga sufliciently high heating value may beused in this apparatus, such as kerosene, gasolene or similar petroleum hydrocarbons. This fuel may be admitted under suitable pressure and in regulated quantities to the a paratus by the fuel coupling 46 on vthe end ol the pipe`40. A'suitable check valve may be provided in this fuel pipe as the valve 35 normally pressed against its seat by. the spring 36 and inclosed within the casing 37. In this Way thefuel i maybe certainly and rcgularlyicd to the vapvorizer which may be in the form of the oon- 40 ical coil 3 in which it is vapolized and the fuel vapor superhoated,if'desired, before delivery through the end of this pipe into the fuel passage 61, sce Figs'. 1 and 2.' From this pas-- sage'the va]' m'ized fuel may be delivered through the burner nozzle 34 in 'such quantity as is determined by the thrcadedburner valve 32 provided lwith a suitable -stulling box 33 and adjusted by the handlel." This` 'burner nozzle 3'; delivers the superheated and vaporized fuel in-a'strong jet into'the rear ofthe burner tube 1, drawing in air by injectorfaction; the mixture issuing through the gauze burner tip`2jat the other end of this U-sliapod burner tubo so as to heatA the vaporzerio the desired extent. 'f

' suitable handle l'or the apparatus may be constituted by the tubular' handle 39 supported by the end flange 38 and at the other end by the valve casing 73. These parts may-be secured together in any desired way as by-the supports 67 which maybe fastenedv to the flange 38 and engaged by suitable bolts 66 on their outer ends so as to hold the parts rmlytogether. These supports may, as indicated, engage the burner tube 1 and the head 25 of the apparatus to hold the parts in proper relative position. The easing 73 may be formed with the oxygen connection 47 andivvith a control valve governing the admission of the oxidizing agent to the heater'pipe r13 and the cutter pipe 30, which 'may be connected with the valve casing by the bushin s 41 and 42. lhe control valve 57 vmay e'of conical form normally pressed home against its seat in the casing by a spring 49 held in position by the cap 74. The controller 43 may be secured upon the valve stemby the screw or bolt 45, so that the valve is readily rotated by this handle to bring* the valve ports into proper relation to theapertures inthe casing and control the pipes -and connected apparatus. For this purpose the valve may have the radial ad# `mission ort 48 with the wide mouth indicated in ig. 3, cooperating with the oxygen inlet56 in theconnection 47. In this way, theoxygen is admitted to the axial passage 75 which when the valve and controller` are in the cutting position indicated in full lines in Figs. 1 and 3 communicates Withthe heater outlet 53 and heater pi e by the heater port 54 which preferably as the wide angle mouth indicated. A'lhe amount of fluid passing into this lheaterpipe may be regulated by the heater valve '52 provided With the thre:` ded portion 51 so that by o erating the handle 44 the o enng between t e valve andl its seat may e regulated to adjust the 'amount ol oxygenflowinA into the heater pipe.` The constricted ra ialucutter porti-:5,0 may be formed in the control 'wal-Ve @numb nicating with the axial passage 75 and cop- .erating `with the cutter outlet 55.1and'cutter pipcwi en the controller and valve arein the cuttingposition indicated. the cont` ller and valve are rotated an eighth ol a turn so that the controller assumes the dotted position 243 indicatori in Fig. 3, this 'c onsllrictod cutter port 5() will of course be' moved out of aliuement with the cutter outlet 53 so that no oxygen will be admitted to .supply of oxygen to the heater. and cutter When, however the cutter pipe and jet. The admission ort and heater port will, however', under t iese circumstances still be .in open connection with the oxygen inlet 50 and the" hinter outlet 53 so that oxygen will still be suppiicd to the heater pipe 13. By moving the control ler another eighth turn into' the dotted position 153, the admission and heater ports will be moved out of alineinent With the co `i-perat ing apertures in the casing so that the oxygen Will be entirely cut oft from the apparatus. In this Way the heater valve may be adjusted to the desired extent and left in this position While the heating and cutting operations may be instantly controlled by moving the con troller as described.

The head 25 secured to the supports 67 may'-` have the tip 21 rigidly but detachably connected therewith by the screvv coupling 24. The'internal nozzle 22 having a replaceable end, if desired, may be mounted within this tip by having a sliding connection in the head 25 and the adjustable asbestos packing the collar 28 with a cooperating adjusting screw 27 engaging a ilange or lug on the head 25, the nozzle may bey moved longitudiinilly with respect to the head and tip so as to adjust the annular opening 72 between the two conical portions o'l these two parts so that heating iluid troni the annular passage 63 Would issue 'from this adjustable opening as a conical heating jet ot` the desired volume and intensity. rihe cutting jet of oxygen issues 'trom the iine cutter' jet 71., the oxygen passing through thc cutter pipe 30 and axial passage 23 in the nozzle. A suitable mixer casing 3.5 may be connected with the head by screwingthe threaded end 16 ot the mixer' into ythe head, the iiange 14 et this mixer eiigaging the casing and forming a tight union therewith in connection with asbestos or similar interposed aching, it desired. VVaporized and he ed 'iuelifrom the fuel passage 61 may pass through the cross passage 5 in Which a suitable strainer 58 may be located before the fuel enters the inclined passage@ communicating with the'annular passage 7 supplying fuel to the threaded 'fuel valve 11. The strainer 5S may consist of a cylinder formed by rollinUr a number of thicknesses of ine Wire gauze together into opencylindrical form. so as 'to tightly iit the passage 5 `while being heid in positionat the other end by the screw cap 59. In this Way the fuel gas is loi'ced to pass through this strainer in which the carbenized material isl deposited so that such ni'ateriai is not undesirably deposited ',in the succeeding portions of the a paratus. G0

A similar strainer 6() may also be d by the cap 62 in position to act-on the iuel which issues from the burnernozzle 34. 'By adjustirigvthc handle 1.() on the stem 9 of the fuel valve 11, thc amount oi vaporizedlfuel passing through the fuel jot S is regulated By provid ing and the valve is held tightly in adjusted posi- `tion by the packing 12 ol' asbestos or other material. This luel passes through a' suitable shield 20 of Wire gauze or other material in the mixer casing and then may pass through suitable radial openings 64 into `.the

mixer passage 17 Where it meets the oxygen 4l'roin thc inlet jet 65, the mixed gases passing ignition temperatureat the point where. the.

cutter jet of oxygen impinges upon it.

Having described this invention incennection with an illustrative embodiment, to the details ,of which disclosure the invention is not, ofcourse, to be limited, what is claimed as new and what is desired to be secured by Letters Patent 'is set forth iii-the appended claims.

1. iln oxygen cutting'ajiparatus, a fuel pipe having acheck valve, a connected vaporizer and fuel passage provided with cylindrical gauze straincrs through which the vaporizcd fuel passes, a burner nozzle con# neet ing with said fuel passage through anadustable bui'ner valve, a burner tube coperating with said burner nozzle and having an annular air inlet openilig around said nozzle and a burner tip within saidva iorizer, a head having a tip, an adjustab e lnozzle mounted therein to forman adjustable conical heater jet, a cutter jet Within said heater jet and communicating with an oxygen passage in said nozzle, a mixervhaving an adjustable l'uel valve connected with said fuel passage 'and a shield and fuel openings leading inte a mixing passage With which the oxygen inlet jet communicates, said mixing passage being connected with the heater jet by an annula1,passage around said nozzle, .a handle provided with a valve casing, a control Avalve and connected controller mounted in said casing, a cutter pipe connected to said nozzle and said casing, a 'heater pipe connected to said mixer and said casing, an

adjust able heater valve mounted in said control valve to control the heating fluid passing therethrough, there being a constricte'd cutter port in said control valve cooperating with said cutter pipe and Wide heater and admission ports in said valve communicating With said heater pipe and anoxygeii inlet.

2. In oxygen cutting apparatus, a fuel pipe having a cheek valve, a connected vape- I rizer and fuel passage provided with gauze strainers throughwiich the vaporized fuel asses, a burner nozzle conncctinff-with said lnel passage through an adjustable burner valve, a burner tube .coperating with said burner nozzleI and having an air 'inlet-adjacentthereto an'd a burner'tip within vsaid vaporizer, a head having'a' tip, a nozzle mounted therein to forin' an 'annular heater said nozzle, a mixer'jhaving an adjustable fuel valve connected with said fuel passage, a

handle provided With a casing, a control valve mounted in said casing, a cutter pipe connected to said nozzle and easing, a heater pipe connected to said mixer and casing, an adjustable heater valve mounted in said control valve to control the heating fluid passing therethrough, there being aconstricted cutter port in said control Valve cooperating with said cutter pipe and wide heater and admission orts in said valve communicating with said ieater pipe and an oxygen inlet.

3 In oxygen cutting apparatus, a fuel pi e, a connected vaporizcr and fuel passage, a burner nozzle connecting with said fuel passage through an adjustable burner valve, a burner tube cooperating with said nozzle 'and said vaporizer and having an air inlet openingadjacent said nozzle, ahead having a ti i, an adjustable nozzle mounted therein to orm an adjustable annular heater jet, a eut-ter jet within said heater jet, a valve caspipe connected to said nozzle and said casing, a'heater pipe connected to said mixer and said casing, an adjustable heater valve mounted in said control valve to control the heating fluid passing therethrough, there being a constricted cutter port in said control valve cooperating with said cutter pipe and a wide heater port communicating with said heater pipe.

4. In oxygen cutting apparatus, a fuel pipe having a check valve, a connected vapo- '.izer and fuel passage provided with gauze strainers through which the vaporized fuel passes, a burner nozzle connecting with said fuel'passage through an adjustable burner valve, a burner tube cooperating with said burner nozzle and having an air inletadjacent thereto 'and a burner tip within said valporizer, a head having a tip, a nozzle mounted therein to form an annular heater jet, a cutter jet within said. heatdr jet and communicating with an oxygen passage in said nozzle, a mixer having an adj 4ustable l'ucl valve connected with said fuel passage, a handle provided with a casing, .ft-control valve mounted in said casing, a cutter pipev connected to said nozzle and casing, a heater pipe connected to said mixer and casing, there being a constricted cutter port in said control valve coperating with said cutter pipe and wide heater and admission orts in said valve communicating with sai( heater pipe and an oxygen inlet.

5. In oxygen cutting apparatus, a fuel pipe, a connected vaporlzer and fuel passage, a burner nozzle connecting with said fuel passage through an adjustable burner valve, a burner tube coperating with said nozzle and said vaporizer and having an air inlet ing, a control valve in said casing, a cutteropening adjacent said nozzle, a head having a tip, an adjustable nozzle mounted therein to forni an adjustable annular heater jet, a cutter jet Within said heater jet, a valve casing, a control valve in said casing, a cutter pipe connected to said nozzle and said casing, a heater pipe connected to said mixer and said casing, there bein a constricted cutter port in said control va Ve coperating with said cutter pipe and a Wide heater port communicating with said heater pipe.

6. In oxygen cutting apparatus, a Vaporizer and connected fuel passage, a burnerv nozzle connected with said fuel passage, means to control the fuel passing through said burner nozzle, a burner tube coperating with said burner nozzle and vaporizer, a head having a heater jet, an oxygen cutter jet, a mixer connected to s aid fuel passage and said heater jet, a handle provided with a valve casing, a cutter pipe connected to said casing and said head to sup ly said cutter jet, a heater pipe connecte to said casing and supplying oxidizing fluid for said heater jet, and a control valve mounted in said casing and controlling the admission of oxidizing fluid to said cutter and heater pipes.

7. In oxygen cutting apparatus, a vaporizer and fuel passage, a burner tube coperating with-said. vaporizer, means to regulabl supply said burner tube With fuel from said fuel passage, a head having'a heater jet vand cutter jet, a mixer connected with said heater jet and means to regulably supply fuel from said fuel passage to said mixer.

8. In oxygen-cutting apparatus, a Va' orizer, means to heat said vaporizer by uel produced by said vaporizer, a head having a heater jet and a cutter jet, and means to supply fuel from said vaporizer to saidheater jet. Y

9. In oxygen cuttin0r apparatus, a head having a cutter jet and heater jet, a mixer connected to said heater jet and having a fuel supply, a handle and connected valve casing connected to said head, a cutter pi e connected to said casing and. head to suppIy said cutter jet, a" heater ipe connected to said casing and mixer, an a control valve in said casing having a constricted cutter port r'zoperat-ing with said cutter pipeand a Wide heater port cooperating with said heater pipe.

10. In oxygen cutting apparatus,a head having a cutter jet and a heater jet, a valve casing and control 'valvetherein, a cutter, pipe connected to said casing and said head to supply said cutter jet, a l'ieater pipe connected to said casing and said head to supply said heater jet, said control valve being provided with means to admit fluid to said heater pipe alone or to admit Huidsinnlltzi acously to said heater pipe, and cutter pipe.

11. In oxygen cutting apparatus, vap rizer, a burner tube coperating with said vaporizer to heat the sanne, means to supply l from said vaporizer, a head having :in oxidizJ said burner tube with fuel from said Vapoing cutter jet and L substantially surround- 10 rizer, a' head having a heatel`- jet and'cutter ing heater jet und meus to supply fuel from jet, a mixer connected with said heater jet Saul vaporizer 'to said heater "et,

' .HENRY '1). lIERlL/XM.y

o and means to supply fuel from said vaporizer to said mixer. NVitnesses;

12. In oxygen-cuttingr apparatus. a Vapo- HARRY L. DUNCAN,

rizerl. means to'heatsmd vaporizer by fuel JESSIE B. KAY. 

